| http://www.w3.org/ns/prov#value | - L is a bond or divalent radical, usually an organic radical, of at least one carbon atom and not more than 20, usually not more than 16, more usually not more than 10 carbon atoms, normally having an aliphatic or aromatic hydrocarbon chain, or combination thereof, wherein the aliphatic chain is usually of from about 2 to 6 carbon atoms and the aromatic chain is of from about 6 to 12, usually 6 to
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